187,052 research outputs found
NANOSTRUCTURED CdTe SOLAR CELLS
No full textSilicon photovoltaic cells are preferred in today's market conditions and technological implementations because they are cheap, abundant and the ongoing research has made them more and more efficient. In spite of that, manufacturing of such solar cells is very energy consuming, and silicon cells are very fragile and prone to breaking in the most mildly hostile situations. Hence, there is a lot of potential in the manufacture and use of flexible solar cells. Possible uses for this solar cell technology could be printing on glass, plastics, flexible cloth materials, and theoretically anything you could imagine. This will give endless opportunities for car makers to implement solar cells on their cars, and small gadgets would never have their battery depleted while it is sunny outside.
The aim of this Project is to develop a complete CdTe based thin film flexible as well as based on glass substrates solar cells using nanostructured surfaces as the key point for reaching in a first step the levels of efficiency of standard commercial Si on glass based solar cells. The research and future production in Europe of this innovative approach would give an extraordinary input to build a solid background for the EU industry to further increase the industrial production of CdTe based thin film solar cells devices.
Nanostructured surfaces will be utilized as one of the key technologies for improving the cell efficiency with the goal to reach the same efficiencies as for today’s standard commercial silicon based solar cells. This objective will be completed in three segments stages: the preparation of materials, the complete characterization of the materials, and the characterization of the final solar cells. To prepare the needed pn-junctions, standard processes as closed space sublimation and chemical bath deposition will be used. Further, the nanostructured surfaces will be prepared by modern approaches such as low energy ion and/or laser sputtering. Finally, the electroding will be made using approaches based on transparent conductive oxides (TCOs such as ZnO:Al, ITO, etc). Simulation tools will be required at each step in order to get the optimal geometry and dimensions of the solar cell. In the materials characterization phase, a complete set of classical and modern techniques will be used to characterize the materials: structural, compositional, electrical, optical, etc. Finally, the solar cells will be characterized in order to give feedback to the preparation process for improving their efficiency.
The expected outcomes will be innovative nanostructured solar cells which will have an extraordinary benefit in the expected efficiency, and with a possibility of commercialization as a final step
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Edward P. Wimberly, ITC, July 2011
No full textThis video is a conversation with Dr. Edward P. Wimberly. Dr. Wimberly talks about his book, "No Shame in Wesley's Gospel: A Twenty-First Century Pastoral Gospel". Brad Ost, AUC Woodruff Library, is the interviewer
Author Rights and Scholarly Publishing
Full text linkOriginally posted at
http://blog.library.gsu.edu/2014/10/24/author-rights-and-scholarly-publishing/</p
sj-docx-1-sel-10.1177_17585732231172166 - Supplemental material for Exercise for rotator cuff tendinopathy: Proposed mechanisms of recovery
No full textSupplemental material, sj-docx-1-sel-10.1177_17585732231172166 for Exercise for rotator cuff tendinopathy: Proposed mechanisms of recovery by Oscar Vila-Dieguez, Matthew D. Heindel, Daniel Awokuse, Kornelia Kulig and Lori A. Michener in Shoulder & Elbow</p
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